Curse Wikipedia as the only source of informations!
No,apart from those two you have mentinned,I at least cannot recall another one citing that rape would lead an Elf to abandon its hröa.
However,let me wonder on that question:If that was a fact,then how did the first Orcs aka Tortured and Corrupted Elves multiply?Does that imply that even Orcs had some feelings left at their dawn?
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Ah,it's good to be home again!
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